School seat and desk.



No. 635,584. Patented Oct. 24, I899.

' 8 W. PEREGRINE.

SCHOOL SEAT AND DESK.

(Application filed Jan. 3, 1898.)

(No Model.)

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' Patented Oct. 24, I899. S. W. PEBEGRINE.

SCHOOL SEAT AND DESK;

(Application filed Jan. 3, 1898.) (No Model.)

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SEYMOUR IV. PEREGRINE, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO CHARLES J.REED, OF NEW YORK, N. Y.

SCHOOL SEAT AND DESK.

SPECIFICATION forming part of Letters Patent No. 635,584, dated October24, 1899.

Application filed January 3, 1898. Serial No. 665,281. (No model.)

To ctZZ- whom it may concern:

Be it known that I, SEYMOUR W. PERE- GRIN E, a citizen of the UnitedStates, residing at the city of Grand Rapids, in the county of Kent andState of Michigan, have invented certain new anduseful Improvements inSchool Seats and Desks, of which the following is a specification.

This invention relates to certain new and useful improvements in schoolseats and desks having the seat and desk substantially verticallyadjustable upon a stationary stand- .ard 5 and the objects of theinvention are, first, to adjust the seat and desk independently by meansof the same adjusting mechanism, which mechanism is adapted to raise.and lower the seat when shifted in one direction and to raise and lowerthe desk when shifted in the opposite direction; second, to adapt theseat and desk to be adjusted independently, so that either the seat ordesk may be adjusted without disturbing the occupant; third, to furnisha simple and efficient adjustment for adjusting the seat and deskindependently, and, fourth, other objects p'ar ticularly described andpointed out in the specification and claims. These objects I accomplishby means of the mechanism illustrated in the accompanying drawings, inwhich- Figure 1 shows a perspective View of the seat and desk complete.Fig. 2 shows in perspective the seat, the standard, and the deskseparated, and also shows the clamping-rod which attaches the desk tothe standard. Fig. 3 shows a plan View of the adjusting mechanism with asection of the seat-back, the

dotted lines showing the position of the adj usting-rod and itsconnections when shifted to operate upon the desk. Fig. 4 shows a rearelevation of the adjusting mechanism. Fig. 5 shows an end view of theadjusting mechanism. Fig. 6 shows a modified form of the ad justing-lever when constructed so as to throw the adjusting mechanisminto engagement either with the front or rear object, opcrating the samefrom one side of the desk. Fig. 7 is a central longitudinal section of adesk and seat made in accordance with my invention.

Similar numerals refer to similar parts throughout the several views.

1 1 show the standards, which are usually constructed of cast-iron, butmay be of any other suitable material.

2 shows the seat proper, and 3 shows the seat back. The seat and backmay be constructed in any suitable manner.

4 shows the top of the desk.

5 5 show the desk-guide, which is adapted to slide in guides or groovesshown by 6.

In Fig. 3 the numerals 8 and 9 indicate two half-nuts, Figs. 1 and 2being on such a scale as to show said parts less clearly. The halfnut 8is attached to the desk-guides, and 9 is attached to the seat-back.

11 11 show adjusting screw-rods, which are shifted at will so as toengage either with the half-nuts 8 or the half-nuts 9.

13 13 are gears, one on each of the adjust ing-rods 11.

14 14 are gears rigid with the shaft 17.

15 15 are horizontal slots in the desk adapted to receive theclamping-rod 22, said rod 22 passing through the slots and the slotsallowin g a horizontal adjustment in order to retain the desk in properrelationship to the seatback 3. v

16 is a device for retaining and limiting the swinging motion of thelever 19, said lever 19 being attached to the support of the adjusting-shaft 17 and also adjusting-rods 11 11. The part designated 16 isa quadrant, and the lever 19 rests against its face and is adapted tomove along the same. The quadrant is provided with tworetaining-notches, Fig. 5, one at each end, with which the lever 19engages,said notches limiting its stroke or swing.

18 is a notch in the end of the shaft 17, adapted to engage with asuitable wrench or other means used in turning the shaft 17, togetherwith the rigid gears 14 14, which operate through the gears 13 13 theadjusting screw-rods 11 11. Instead of using the notch 18 the end of theshaft may be constructedin any suitable form to engage with the wrenchor other device suitable for operating the same.

20 20 are the fulcrum-pivots for the lever 19 in my preferred form. Inthe modified form shown in Fig. 6 the rod 7 is supportedin a suitablebearing on the standard and serves as the fulcrum for operating theshifting mechanism.

21 shows the point of attachment between the lever 19 and theshaft-support 26.

22 shows a clamping-rod adapted to pass through the slots 15 15 andsecured in position by means of any suitable nut or other means for thepurpose of retaining the desk in position and allowing its horizontaladjustment.

23 is a slot in the standard, with which the clamping-rod 22 engages.

25 25 are slots in the seat-frame, through which pass bolts securing theseat to the standard and which allow for the vertical adjustment of theseat independent of the standard.

27 is a clamping-rod which passes through the slots 25.

28 is a foot-guard secured to the standard and constructed in theordinary manner.

29 is the seat-bracket which supports the seat proper.

30 is an opening in the standard, through which the adjusting-shaft 17passes.

31 is a slot in the standard, through which the end of the shaft-support26 passes and in which it is adapted to move. The shaft 17, beingretained in position in the elongated slot 30 by this adjustment, isadapted to all kinds of combined seats and desks in which the seat anddesk are adjusted separately.

The operation of my invention is as follows: Then the lever 19 isshifted into the position shown in Fig. 1, the adjusting screw-rods 1111 are in engagement with the half-nuts 9 9, as shown in Fig. 3. Byrevolving the shaft 17 to the right the screw-rods 11 11 operate toraise the seat. By reversingthe motion of the shaft 17 the movement ofthe screw-rods 11 11 is reversed and the seat is lowered. The raisingand lowering of the seat do not in any way affect the desk, whichremains stationary. In order to adjust the desk, the lever 19 is thrownin the opposite direction, which will shift the shaft 17 and its gears16, together with the screw-rods 11 l1 and their attached gears, asshown in Figs. 3 and 5, whereby to cause the said screw-rods ll 11 toengage with the half-nuts S 8, and said halfnuts being rigidly connectedto the deskguides by revolving the shaft 17 in one direction the desk israised, and by reversing the motion of the shaft 17 the desk is lowered.The adjustment of the desk either upor down does not in any way affectthe movement of the seat. By this construction the same adjustingdevice, by merely shifting it fromits engagement with the desk, operatesthe desk, and by shifting it into engagement with the seat operates theseat, thereby greatly simplifying the construction and operation of theparts necessary to adjusting the seat and desk independently of eachother.

Having thus described my invention, what I claim to have invented, anddesire to secure by Letters Patent, is-

1. In a combined school seat and desk, the combination with the standardadapted to support the seat and desk, a seat adjustablysupported by thestandard, a desk adjustably supported by the standard, suitableadjusting mechanism adapted to raise and lower the seat when shiftedinto engagement therewith, and to raise and lower the desk when shiftedinto engagement with said desk and suitable means for shifting saidmechanism, said seat and desk being adjustable independently of eachother.

2. The combination of the standard, the seat, the desk, said seat anddesk being adjustably attached to the standard, a shaft provided withgears,screw-adjusting rods also provided with gears engaging with thegears upon the shaft, and suitable mechanism for shifting the shaft,gears and adjusting-rods into operative connection with the seat for thepurpose of. adjusting the seat Vertically, and

for shifting them from operative connectionwith the seat to operativeconnection with the desk for the purpose of adjusting the deskseparately, substantially as described.

3. In a school-seat, the combination with the standard, of a shaftextending transversely across the standard, gears rigidly connected withsaid shaft, shiftable screw-rods provided with gears cooperating withgears on the shaft and also with suitable mechanism upon the seat anddesk respectively for the purpose of raising and lowering either thedesk or seat and means for shifting said screw-rods, substantially asdescribed.

t. In combination with the standard, a seat and desk adj ustablyconnected thereto,a shaft extending transversely the seat and desk,gears upon said shaft, adjusting screw-threaded rods having gearsengaging with the gears on the shaft, half-nuts upon the seat, and halfnuts upon the standard, and suitable means for shifting said adjustingscrew-rods into engagement either with the half-nuts upon the seat orthe half-nuts upon the desk, substantially as and for the purposedescribed.

In witness whereof I have hereunto set my hand and seal in the presenceof two witnesses.

SEYMOUR W. PEREGRINE.

WVitn esses:

EDWARD TAYGART, CHRISTOPHER HONDELINK.

